FlexPower Generation 2 DC Power System Installation Manual
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11
Troubleshooting
Section 2 – Troubleshooting and Maintenance
2 .1 Troubleshooting Table
Symptom
Possible Problem
Information / Possible Solution
SYS FLT LED lit and SYS
FLT relay indicating a
trouble condition
Battery Disconnected
• Verify that the battery is connected to the FPO . Check all crimp connec-
tions on the battery leads
• Verify that the battery set being used is charged and in good condition
• If no battery will be used in the installation, remove the BAT DET jumper
Earth Ground Fault
• This fault will be accompanied by the GND FLT LED being lit and will
only display if the EARTH GND DET jumper is ON
• An impedance exists between earth ground and a voltage output or DC Com-
mon connection on the FPO power supply, an accessory board, or any con-
nected piece of equipment . Isolate the connection with the impedance by
removing wires in groups or one at a time until the fault clears . Note that
most accessory board terminal strips are removable
• Ensure that no other equipment in the system is set to detect earth ground
faults (including other FPO power supplies in the system) . Enabling earth
ground detection on more than one piece of equipment in a system will
cause a conflict and may cause one or all pieces of equipment in the system
to display an earth ground fault
Low Battery Voltage
• Battery discharged or damaged– Allow the battery to charge or replace
the battery
High Battery Voltage
• Incorrect battery set– Ensure the battery set is configured properly for the
output voltage setting
• Problem with battery charging circuit– Contact LifeSafety Power
High or Low Output Voltage • Measure the output voltage at the DC1 terminals . The voltage should be
12 .50V for the 12V setting or 25 .00V for the 24V setting (±10%) . Contact
LifeSafety Power if the voltage is outside of this range
Blown Fuse
• Check the Battery fuse .
• Verify the integrity of the output wiring and powered devices before replac-
ing any ruptured fuses . Replace fuses only with the same type and rating
Accessory Board Fault
• Verify that no fault conditions are present on any accessory board or
other FPO power supplies in the enclosure . The FlexIO connectors may
be disconnected to isolate the source of an accessory fault .
Internal Problem
• Contact Lifesafety Power
AC FLT LED lit and AC FLT
relay indicating a trouble
condition
Primary AC Voltage Low or
Missing
• Verify that the AC input voltage is 120V or 230V (±15%) with a meter .
For safety, the green AC ON LED indicates the presence of any AC volt-
age on the input, but not the integrity of the voltage
120/230 Jumper (JP1) Set
Incorrectly
• Verify that JP1 is set correctly– intact for 120V input, cut for 230V input
• Note: Models ending in "-E" are factory set for 230VAC operation and
cannot be changed to 110VAC operation
Internal problem
• Contact LifeSafety Power
No DC1 Output
DC1 LED Extinguished
Power Supply Shut Down
• Verify DC output voltage, AC power, and backup battery voltage (if used)
• Check output load integrity and current draw
• If the FPO detects ten output faults within one minute, the supply will
shut down, transfer to battery backup (if available), and generate a fault
condition . Cycle AC power to reset the supply after determining the
cause of the output fault condition
Содержание FlexPower Generation 2
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